The purpose of this study was to explore empirical evidence to support the performance measurement framework identified by the American Prosecutors Research Institute's (APRI) Prosecution Study for the 21st Century. The framework included promoting the fair, impartial, and expeditious pursuit of justice and ensuring public safety. Two prosecutors' offices participated in the study. One was a traditional office, and the other was a more community-oriented office. Each site submitted monthly data on the identified performance measures for analysis. APRI also designed and administered a public safety survey to assess a number of factors related to the performance of prosecutors' offices, but for which data could not be provided by the offices. The public safety surveys were administered by phone using random digit dialing (RDD). Part 1, Site 1 Administrative Data, contains 15 months of data, and Part 2, Site 2 Administrative Data, contain 6 months of data on the identified performance measures for analysis from each site. Part 3, Public Safety Survey Data, contains variables that provide some basic demographic data about the respondents and several variables in response to Likert-style questions measuring attitudes and opinions on six factors. These include the seriousness of local crime, safety of the environment, organizational behavior of the prosecutor's office, participation in the community, community education, and task performance.